- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8">
- <title>js图片轮播切换</title>
- <style type="text/css">
- .imgCon{width: 400px;height: 400px;border: 2px solid #DCDCDC;margin: 100px auto;position: relative;}
- .imgCon span{display: block;position: absolute;left: 0px;width: 100%;height: 30px;background: #808080;text-align: center;font-size: 18px;line-height: 30px;}
- .numStyle{top: 0px;}
- .textStyle{bottom: 0px;}
- .imgCon strong{font-size: 30px;color: #000000;position: absolute;top: 50%;display: block;background: gray;cursor: pointer;}
- .imgCon .prev{left: 10px;}
- .imgCon .next{left: 370px;}
- img{width:400px;height: 400px;}
- </style>
- </head>
- <body>
- <div class="imgCon">
- <span id="numCon" class="numStyle">加载中...</span>
- <span id="textCon" class="textStyle">加载中...</span>
- <strong id="prev" class="prev"><</strong>
- <strong id="next" class="next">></strong>
- <img src="" id="imgChange"/>
- </div>
- <script type="text/javascript">
- var numCon = document.getElementById('numCon');
- var textCon = document.getElementById('textCon');
- var prev = document.getElementById('prev');
- var next = document.getElementById('next');
- var imgChange = document.getElementById('imgChange');
- var imgArr = ['img/ad1.jpg','img/ad2.jpg','img/ad3.jpg','img/ad4.jpg'];
- var imgText = ['第一张','第二张','第三张','第四张'];
- var num = 0;
- //数字 图片变化函数
- function imgTab(){
- numCon.innerHTML = num+1 + '/' + imgArr.length; //数字变化
- textCon.innerHTML = imgText[num]; //底部文字内容变化
- imgChange.src = imgArr[num]; //图片变化
- }
- imgTab();
- //下一张 按钮
- next.onclick = function(){
- num++;
- if(num == imgArr.length){
- num = 0;
- }
- imgTab();
- }
- //上一张 按钮
- prev.onclick = function(){
- num--;
- if(num == -1){
- num = imgArr.length-1;
- }
- imgTab();
- }
- </script>
- </body>
- </html>